Coos is assorted by our antivirus team as the DJVU ransomware family. Another variants of this family is Qlkm, Atek, Igal, and some others. There are certain antiviruses that ignore it as well as therefore permitting its invasion. Actually, we have to call it that, because of the “.coos” extension that it appends at the end of your records.
Let’s clarify. Coos virus attacks your system through slyness and knack also. After that, once entered it practices AES or RSA encryption methods to hold your files.
Then, they extort you for their decode. After Coos evades right into your device, it places every one of your files under locking. It appends its very peculiar extension “.coos” at the end, thus making documents inaccessible.
Files with “.coos” extension appended by the Coos virus:
It hits data, folders, photos, music, movies, all of it! Thereafter, you can’t longer view them. Displacing files or renaming it will not facilitate. Exclusive remedy to unblocke your files from the ransomware’s keep is deciphering. The ransomware expects you to pay buyout currency if you wish to get your documents back. It makes that clear (in the blackmail note) it will decode data after defrayal.
The note is ordinarily a text file, left on your desktop. You can also find it in each folder that has encrypted data. It describes your concerns and also proposes you a solution. According to Coos, sole remedy to decode your documents is with out-and-outer deciphering key. And also, to obtain it you have to give a redemption. The sum is $980, as well as it’s normally asked for in Bitcoins.
The note by the Coos virus states the following info:
ATTENTION! Don't worry, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-WbgTMF1Jmw Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: firstname.lastname@example.org Reserve e-mail address to contact us: email@example.com Our Telegram account: @datarestore Your personal ID: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Do NOT pay for decrypt of “coos” files!
The Coos infection guarantees, to send you the key after you disburse. As well as, that’s it. That’s all you obtain – a promise. You have no assurances that obedience results in something favorable. Do not bear on words of virtual crooks. That is people, that will fool you. Do NOT send them a cent. Don’t call them Do NOT comply with their needs.
How did my PC got harmed by Coos?
Your computers get contaminated with the Coos ransomware because of your disability to be watchful. Some people do not notice essential details while using the Internet or downloading different applications.
The Coos infection uses the old but good rapacious techniques to deceive you. And rushes in unnoticed. That involves concealing behind defective web links, sites, and torrents. It makes use of freeware as a way to hide itself. And shapes as a fake system or program update. Like, Adobe Flash Player or Java.
Yet more often than not, it makesuse of junk emails. You obtain an email that seems to find from a well-known brand. Like, Amazon or PayPal. And, the email suggests you to visit a web link, or download and install an program. If you do, you end up with malware.
Remember that these types of risks are cheating your oscitancy. They need you to rush and skip doing due diligence. That relieve their hidden penetration. They bear on you to leave your fate to chance. Do not! Don’t pick recklessness over care. One keeps infections out. The other welcomes them in.
Therefore, do not disburse them a fee. Don’t connect to the internet frauds. If you do, you’ll regret it. It’s a vain effort to return your files, as well as it will not end well for you. Below’s why.
There are a few circumstances that can unravel when you see the buyout currency note on your desctop. Claim, you decide to concede. You connect to the bleeders, disburse their blackmail funds, and wait. You wait on them to send you the decryption trick they promised. Well, what happens if they do not?
Even so, you have no guarantees. All, you rest on, is a word. Can you absolutely think promises of cyber criminal? The answer is ‘No.’ These are people, who will naturally let down you. Don’t give money! There’s also another way.
They can actually send you a deciphering key. However, when you attempt to apply it, it fails to work.
Yes, they can send you the wrong code. After that, you have much less funds, as well as your data continues to be locked. Don’t pay! And also your best-case scenario isn’t a reason for enjoyment. What takes place after you disburse the redemption currency, obtain the appropriate trick, as well as totally free your data? Well? Consider it. You paid money to eliminate a sign and symptom, yet not the malware triggering it.
So, you remove the encryption, yet the Coos virus stays. It’s still creeping in the corners of your system, complimentary to strike once again. After that, you’re back at a new start.
Why is Coos unsafe?
Futhermore, to encipher a injured’s data, the Coos virus has also started to install the Azorult Spyware on PC to steal account data, cyber money wallets, desktop documents, and more.
So, your PC obtained assaulted by Coos and also probably you have actually lost time trying to eliminate it manually. We are absolutely positive that the remedy below will certainly be usefull in removing Coos in an automated way.
How to protect PC from Coos ransomware?
However, let us initially speak about prevention of such cryptoware attacks in the future. There is something exists that you can do to avoid this kind of nasty danger from entering into your PC in good time?
There are a couple of things we wish to talk about here. First one is your private responsibility for being beyond belief attentive while you utilize your device and largely while you surf the internet. When inspecting your e-mail and see some suspect attachments consisted of, do not hurry to view them.
In a like manner, when you get on Facebook and social networks also someone you communicate with sends you messages attaching accessories, be very mindful, particularly if these are some executable files.
Another thing to take into account is researching the trustworthiness of your current security tool. Unfortunately, there are multiple safety and security softwares nowadays that just assert to be dependable, whereas in times of real infection intrusions they simply stop working to do the task as announced.
In case Coos penetrated into your laptop this specifies that your current security tool did not do its advertised purpose as well as really fell short to guard your system. So obviously it is a point for you to revalue your choices and also definitely switch over to some other software that can most definitely procure the wanted degree of protection.
Not all antiviruses are good
We can additionally discuss some portion of users that like not to have any kind of security software program at all. Definitely, this is a big mistake on their component, due to the fact that presently the Internet has dozens of internet jeopardies that may stealthily penetrate perceptive systems, specifically those that are not tooled with some standard degree of safety.
So, having protection tool permanently working and securing your device is a must-do point in nowadays’ virtual world.
Coos is getting on the nerves of many users, so you’re not its only victim.
People ask how to repair the problem effectively. Getting rid of the infection manually may be a long-lasting undertaking and can damage other important system files. Scan your PC with GridinSoft Anti-Malware to detect and delete Coos in the right way.
Click to Download GridinSoft Anti-Malware.
Coos removal guide
STEP 1. Recover files from Coos ransomware encryption
You can download free decryption tool here: Decryptor for STOP Djvu. But it work when the Coos virus used an offline key for encryption.
If key does not found, we advice to restore your PC
There are a lot of different ransomware viruses on the internet. Some of them are more dangerous than the others because they not only leaving malicious processes to protect themselves, but also removing backups of your system to make the recovery process impossible.
Please Note: Not all ransomware infections are able to remove backups of your system, so it is always worth to try a windows recovery.
We recommend use Safe Mode with command prompt to safely perform a recovery of your files. You will have to reboot your computer, so you better save this instruction:
STEP 2. Removing Coos ransomware malicious files
Once the recovery process is complete, you should consider scanning your computer with a GridinSoft Anti-Malware in order to find any traces of Coos infection. Though some ransomware viruses are removing themselves right after the encryption of your files, some may leave malicious processes on your computer for special purposes of cyber criminals.
Run GridinSoft Anti-Malware and choose the scan type, which is suitable for your needs. Of course, for the accuratest scan results we recommend you to choose the “Full Scan”.
Give Anti-Malware a little time to check your system:
Move to quarantine all the viruses and unwanted files, that you see in the results list:
Enjoy the malware removal process:
Use of On-run protection may additionaly prevent different types of cyber attacks, our protect may flag the downloader of the ransomware as a malicious application preventing the download of Coos.
STEP 3. Prevent the Coos virus infection
Besides the protection tool, you should read and learn few simple rules. Follow them every time you work on your computer and your will decrease chances of your infection to a minimum:
- Don’t open suspicious letters. No way! Be very careful with your downloads. Download and install applications preferably from its trusted website.
- Do backups of your important files regularly. Storing your really important files in few different places is a good decision.
- Keep your PC free from adware, hijackers and PUPs The infected computer will be more likely compromised with other malicious software, and ransomware is not an exception in this case.
- Don’t panic and be reasonable. Don’t pay the ransom fee right after you got infected, it is always best to search on the internet for some answers. It is possible that someone have developed a decryption tool that might help you.